JPH0129771Y2 - - Google Patents
Info
- Publication number
- JPH0129771Y2 JPH0129771Y2 JP5541883U JP5541883U JPH0129771Y2 JP H0129771 Y2 JPH0129771 Y2 JP H0129771Y2 JP 5541883 U JP5541883 U JP 5541883U JP 5541883 U JP5541883 U JP 5541883U JP H0129771 Y2 JPH0129771 Y2 JP H0129771Y2
- Authority
- JP
- Japan
- Prior art keywords
- fuse
- side electrode
- cap
- case
- arrester
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 230000006835 compression Effects 0.000 claims description 12
- 238000007906 compression Methods 0.000 claims description 12
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
Landscapes
- Thermistors And Varistors (AREA)
Description
【考案の詳細な説明】
本考案はヒユーズ溶断時に発生する衝撃圧力を
緩和できる構造としたヒユーズ内蔵タイプの避雷
器に関する。[Detailed Description of the Invention] The present invention relates to a lightning arrester with a built-in fuse having a structure capable of alleviating the impact pressure generated when a fuse blows.
従来のヒユーズ内蔵タイプの避雷器の概略断面
を第１図に示す。充電側の電極１と接地側の電極
３との間にアレスタ素子２が接合されており、充
電側の電極１には電線に接続する接続端子４が固
着されている。これらの接続端子４、充電側電極
１、アレスタ素子２、接地側電極３は絶縁樹脂５
により一体にモールドされている。さらに、接地
側電極３に突設された引出し片６にはヒユーズ７
の一端部が接続され他端部が接続片８に接続され
ている。この接続片８の端部には、ヒユーズ７お
よび接続片８等の周囲を覆うキヤツプ９がカシメ
により一体に取付けられており、このキヤツプ９
内には圧縮スプリング１０が内装されている。こ
の圧縮スプリング１０は通常時ではヒユーズ７に
よつて支持されている。また、上記絶縁樹脂５に
は接地用の接続端子１１が上記キヤツプ９に接続
した状態で取付けられている。したがつて、異常
電圧の襲来時には、アレスタ素子２から接地側電
極３、ヒユーズ７、接続片８、キヤツプ９、接地
用接続端子１１を通る通電路が形成されている。 FIG. 1 shows a schematic cross section of a conventional lightning arrester with a built-in fuse. An arrester element 2 is connected between an electrode 1 on the charging side and an electrode 3 on the grounding side, and a connecting terminal 4 connected to an electric wire is fixed to the electrode 1 on the charging side. These connection terminals 4, charging side electrode 1, arrester element 2, and grounding side electrode 3 are made of insulating resin 5.
It is integrally molded. Furthermore, a fuse 7 is provided in the drawer piece 6 protruding from the ground side electrode 3.
One end is connected and the other end is connected to the connecting piece 8. A cap 9 that covers the fuse 7, the connection piece 8, etc. is integrally attached to the end of the connection piece 8 by caulking.
A compression spring 10 is housed inside. This compression spring 10 is normally supported by a fuse 7. Further, a grounding connection terminal 11 is attached to the insulating resin 5 in a state connected to the cap 9. Therefore, when an abnormal voltage occurs, a current-carrying path is formed from the arrester element 2 through the ground electrode 3, the fuse 7, the connection piece 8, the cap 9, and the ground connection terminal 11.
ところが、上記従来の避雷器においては、ヒユ
ーズの遮断電流が大きくなつた場合には、ヒユー
ズ溶断時の衝撃圧力が大きくなるため、この大き
な衝撃圧力がキヤツプ内の部品に加わるため、こ
れらの部品の強度を大きくして設計する必要があ
つた。 However, in the above-mentioned conventional lightning arrester, when the breaking current of the fuse increases, the impact pressure when the fuse blows increases, and this large impact pressure is applied to the parts inside the cap, which reduces the strength of these parts. It was necessary to make the design larger.
そこで、本考案は上記従来技術の欠点に鑑み、
ヒユーズ溶断時の衝撃圧力を緩和することによ
り、キヤツプ内の取付部品の強度を低減できる構
造にした避雷器を提供することを目的とする。 Therefore, in view of the drawbacks of the above-mentioned conventional technology, the present invention is
It is an object of the present invention to provide a lightning arrester having a structure that can reduce the strength of attached parts in a cap by alleviating impact pressure when a fuse blows.
以下に本考案の一実施例を第２図に基づいて説
明する。尚、従来例と同一部分には同一番号を附
す。 An embodiment of the present invention will be described below based on FIG. 2. Note that the same numbers are given to the same parts as in the conventional example.
本実施例の避雷器は、絶縁樹脂又は碍子により
筒状に形成されたケース１２を具え、このケース
１２内に充電側電極１と接地側電極３間に接合さ
れたアレスタ素子２が密封状態状で収納されてい
る。このケース１２の一端側は開口し、他端側に
底部を有しこの底部中央に小開口１２ｂが設けら
れている。このケース開口１２ａはＯリング１３
が環装してケースキヤツプ１４により密閉されて
いる。他方、小開口１２ｂはＯリング１７を介装
して接地側電極３が挿入され、充電側電極１とケ
ースキヤツプ１４の間に圧縮スプリング１５を介
装してこの圧縮スプリング１５の押圧により密閉
されている。また、充電側電極１には短絡片１６
が引出されてケースキヤツプ１４に取付けられた
電線用の接続端子４に接続されている。 The lightning arrester of this embodiment includes a cylindrical case 12 made of insulating resin or insulator, and an arrester element 2 connected between a charging side electrode 1 and a grounding side electrode 3 is sealed in the case 12. It is stored. The case 12 is open at one end, has a bottom at the other end, and has a small opening 12b in the center of the bottom. This case opening 12a has an O-ring 13
is enclosed and sealed by a case cap 14. On the other hand, the ground side electrode 3 is inserted into the small opening 12b with an O-ring 17 interposed therebetween, and a compression spring 15 is interposed between the charging side electrode 1 and the case cap 14, and the compression spring 15 is pressed to seal the small opening 12b. ing. In addition, a shorting piece 16 is provided on the charging side electrode 1.
is pulled out and connected to a connecting terminal 4 for electric wires attached to the case cap 14.
また、接地側電極３からは小開口１２ｂを通し
て引出し片６が突設され、ヒユーズ７が接続し、
このヒユーズ７には接続片８が接続している。こ
の接続片８の端部には、ヒユーズ７等を周囲から
覆うキヤツプ９がカシメにより一体に取付けられ
ており、このキヤツプ９内には圧縮スプリング１
０が内装されている。また、上記キヤツプ９に接
続した状態で上記ケース１２には接地用の接続端
子１１が取付けられていて、アレスタ素子２から
接地側電極３、ヒユーズ７、接続片８、キヤツプ
９、接地用接続端子１１を通る通電路が形成され
ている。 Further, a drawer piece 6 is provided protruding from the ground side electrode 3 through the small opening 12b, and a fuse 7 is connected to it.
A connecting piece 8 is connected to this fuse 7. A cap 9 that covers the fuse 7 etc. from the periphery is integrally attached to the end of the connecting piece 8 by caulking.
0 is included. In addition, a grounding connection terminal 11 is attached to the case 12 while connected to the cap 9, from the arrester element 2 to the grounding electrode 3, the fuse 7, the connection piece 8, the cap 9, and the grounding connection terminal. An energizing path passing through 11 is formed.
このような避雷器においては、異常電圧の襲来
時等、ヒユーズ７が溶断して過大な衝撃圧力が発
生した場合には、ケース１２内の圧縮スプリング
１５が短縮することにより、充電側電極１、アレ
スタ素子２および接地側電極３が第２図中上方に
移動して小開口の密封が破られる。したがつて、
衝撃圧力は圧縮スプリング１５の圧縮によつて吸
収されるため緩和することができる。 In such a lightning arrester, when the fuse 7 blows out and excessive impact pressure is generated, such as when an abnormal voltage strikes, the compression spring 15 in the case 12 is shortened, causing the charging side electrode 1 and the arrester to shorten. The element 2 and the ground electrode 3 move upward in FIG. 2, breaking the seal of the small opening. Therefore,
The impact pressure is absorbed by the compression of the compression spring 15 and can be alleviated.
以上、説明したように本考案によれば、接地側
電極、アレスタ素子および充電側電極を積層して
絶縁性のケース内に密封状態で収容すると共に、
これら両電極およびアレスタ素子をヒユーズ溶断
時に発生する衝撃圧力と反対方向に圧縮スプリン
グにより付勢した構造にしたことにより、ヒユー
ズ溶断時に発生する衝撃圧力が前記圧縮スプリン
グにより吸収されるため緩和され、接地側電極側
に設けられる圧縮スプリングおよびキヤツプ等の
取付部品の設計強度を低減できると共に小形軽量
化を図ることができる。 As explained above, according to the present invention, the grounding side electrode, the arrester element, and the charging side electrode are laminated and housed in an insulating case in a sealed state, and
Since both electrodes and the arrester element are biased by a compression spring in the opposite direction to the impact pressure generated when the fuse blows, the impact pressure generated when the fuse blows is absorbed by the compression spring and is alleviated. The design strength of attachment parts such as compression springs and caps provided on the side electrode side can be reduced, and the size and weight can be reduced.
第１図は従来の避雷器の概略断面図、第２図は
本考案の一実施例に係る避雷器の概略断面図であ
る。
図面中、１は充電側電極、２はアレスタ素子、
３は接地側電極、４は電線用の接続端子、６は引
出し片、７はヒユーズ、８は接続片、９はキヤツ
プ、１０，１５は圧縮スプリング、１１は接地用
接続端子、１２はケース、１３，１７はＯリン
グ、１４はケースキヤツプ、１６は短絡片であ
る。
FIG. 1 is a schematic sectional view of a conventional lightning arrester, and FIG. 2 is a schematic sectional view of a lightning arrester according to an embodiment of the present invention. In the drawing, 1 is a charging side electrode, 2 is an arrester element,
3 is a grounding electrode, 4 is a connection terminal for electric wires, 6 is a drawer piece, 7 is a fuse, 8 is a connection piece, 9 is a cap, 10 and 15 are compression springs, 11 is a grounding connection terminal, 12 is a case, 13 and 17 are O-rings, 14 is a case cap, and 16 is a shorting piece.
Claims (1)
ヒユーズの外端部に当該ヒユーズを覆うキヤツプ
が取付けられ、このキヤツプ内に圧縮スプリンが
前記ヒユーズにより支持して実装されたヒユーズ
内蔵タイプの避雷器において、前記接地側電極と
この接地側電極に接合したアレスタ素子とこのア
レスタ素子に接合した充電側電極とを絶縁性の密
封ケース内に収納すると共に、このケースの内壁
と前記充電側電極との間に圧縮スプリングを介装
し、前記充電側電極と前記ケース上部に設けた電
線用接続端子とを伸縮可能な短絡片により接続し
たことを特徴とする避雷器。 A lightning arrester with a built-in fuse, in which a fuse is connected to the grounding side electrode, a cap is attached to the outer end of the fuse to cover the fuse, and a compression spring is supported and mounted in the cap by the fuse. The grounding side electrode, the arrester element connected to this grounding side electrode, and the charging side electrode connected to this arrester element are housed in an insulating sealed case, and a compressed material is placed between the inner wall of the case and the charging side electrode. 1. A lightning arrester, characterized in that a spring is interposed, and the charging side electrode and the electric wire connection terminal provided on the upper part of the case are connected by a stretchable shorting piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5541883U JPS59161605U (en) | 1983-04-15 | 1983-04-15 | Lightning arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5541883U JPS59161605U (en) | 1983-04-15 | 1983-04-15 | Lightning arrester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59161605U JPS59161605U (en) | 1984-10-29 |
| JPH0129771Y2 true JPH0129771Y2 (en) | 1989-09-11 |
Family
ID=30185743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5541883U Granted JPS59161605U (en) | 1983-04-15 | 1983-04-15 | Lightning arrester |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59161605U (en) |
-
1983
- 1983-04-15 JP JP5541883U patent/JPS59161605U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59161605U (en) | 1984-10-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4984125A (en) | Arrester apparatus | |
| JPH0129771Y2 (en) | ||
| JPS5843423Y2 (en) | AC generator for charging | |
| JPH0539549Y2 (en) | ||
| JPS6115565Y2 (en) | ||
| JPS5921497Y2 (en) | Cylindrical high-voltage cutout with lightning arrester built into the hakama component | |
| JPH0441592Y2 (en) | ||
| JP2527774Y2 (en) | Gas insulated current transformer with protection device | |
| JPS5919427Y2 (en) | Combined surge absorber | |
| JPS6326910Y2 (en) | ||
| JPS6019315Y2 (en) | High voltage cutout with built-in arrester | |
| JP7191757B2 (en) | tubular cutout | |
| JPS5921498Y2 (en) | Cylindrical high-voltage cutout with lightning arrester built into the hakama component | |
| JPS596598Y2 (en) | Cylindrical high voltage cutout with built-in lightning arrester | |
| JPS6325683Y2 (en) | ||
| JPS644199Y2 (en) | ||
| JPH09180560A (en) | Insulator device with built-in protection device | |
| JPS644198Y2 (en) | ||
| JPS6321080Y2 (en) | ||
| JPH0628920Y2 (en) | Built-in arrester high pressure cutout | |
| JPH0539551Y2 (en) | ||
| JPH0625923Y2 (en) | Internal sealing electrode mounting structure for lightning insulator | |
| JPH0134840Y2 (en) | ||
| JPS6321079Y2 (en) | ||
| JPS6023924Y2 (en) | surge absorber |